'01 X5 SES Code P0174 - please help

[Fultoncm]

My timing sucks. I was on my way to get my emissions test when the service engine light came on. When I get there, they see this and fail me. They hooked up the scanner and it gave the code P0174 only.

P0174:System too lean bank 2

I've looked all over this board and the internet. The main suggestion is to clean the Mass Air Flow sensor. I looked at it and the metal tab that reads the air looks fine. It looks clean. The car is running fine though, so I'm not sure what to do here.

I'm about to move from Seattle to Tampa and this car is going to be the transport for my wife. I need to get this fixed ASAP. I was hoping to register the car before I leave, but I can't with this stupid light on. Any suggestions?

Thanks!